Machine for making insoles.



A. E. JOHNSQN.

MACHINE FOR MAKING INSOLES.

APPLICATION FILED JAN.25.1909.

Patented Mar. 10, 1914..

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ALBERT E. JOHNSON, OF BROGKTON, MASSACHUSETTS, .ASSIGNOR TO UNITED SHOEMACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

Application filed January 25, 1909.

To all whom it may concern,

. Be it known that I, Annnnr E. JOHNSON, a citizen of the United States,residing at Brockton, in the county ot Plymouth and State ofldassachusetts,have invented certain new and useful Improvements inMachines for Making' lnsoles; and l do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to machines :tor forming insoles and moreparticularly to machines torforming what are known commercially Economy7 insoles for use in Goodyear shoes.

' At'ter the channel and feather flaps have been cut they are upturnedto a position substantially perpendicular to the insole either before orduring the operation presentlvnto,

be described and, in this type of insole, it is desirable that thesetlaps be secured together while so upturned to properly prepare theinsole for the application o'f reinforcing fabric.

, Some difficulty has been experienced here tofore in permanentlyretaining` the upturned channel and feather flaps of Economy, and otherinsoles et the same general character, in intimate contact so as to forma Single compound lip of sutlicient strength to receive the stitches torsecuring the upper and Welt in place.

The general object of the present invention isto overcome thisditlieulty. This object of the invention may be attained by applying tothe two upturned flaps a series oi tastening devices acting to bind the{iaps rmly together'. Preferably a line of stitchino' is einployed, andany form of stitch may le used which will hold the separate upturnedflaps permanently together.

The particular object of the present invention is to provide suitablemeans for holding an insole in such relation to the mechanism forinserting the fastenings, for instance, the stitch forming mechanism ota sewing machine, that the fastening device may be preperly applied tothe upturned fiaps. This ob ject of the invention is accomplished by therevision of an attachment to any convenlcnt t pe of sewing machine, forinstance, the ational sewing machine (shown in many prior patents, anexample being the patent to E'. E. Bean, No. 159,144, of J any.

Specification of Letters Patent.

. MACHINE FOR MAKING INSOLES.

Patented Mar. M), 15H4. serial No. 473,993. v`

26, 1875), comprising a suitable solo guide or sole positioning deviceto bear on ,the grain side or unchanneled face of the insole constructedand arr: nged so that when thel insole is presented edgewise to themachine with thechannel tlap resting on the sole snp porting table thetwo upturned flaps will be heldI` throughout the operation, in properrelation to the stitching mechanism to receive the stitches. i

Preferably-fthe attachment is mounted on the sewing machine in such amanner that when the sewing machine presser foot is retracted by theoperator, to permit the solo to be inserted, the guide or positioningdevice is also retracted to a position ot'non-interit'erence with thesole as it is placed in the machine. One way ot accomplishing this endis to mount the sole positioning device on the lever by means ot' whichthe'presser foot is lifted. Means is provided to return this l'eyer, andwith it the sole positioning device, to its sole engaging position attercontrol by the operator is released. rlhis means is preferably in the'term ot a spring. The sole positioning device is thus held yieldinglyagainst the tace ot the insole. and can, therefore, accommodate itsel't'to any thickness of stock. rThis construction also permits the solepositioning device to be moved outwardly by any unevenness in thethickness of the sole being operated on as it is fed through themachine. This overcomes any tendency the sole positioning device mavhave to bind the insole against` the edge. of the sole supporting tableand prevent a` proper feeding movement.

It desired the sole positioning' device may be so constructed andarranged that it is automatically withdrawn from its engagement with theinsole during the time the sole is being fed, thus entirely overcoming'any friction exerted by the device on the solo. This may be accomplishedby so designing the attachment that it will be engaged-by one of themoving parts of the sewing mechanism, prior to the connnencement of thefeeding movement, in a manner to be moved out of engagement.- with theinsole. A oonvenient moving part which may be utilized to accomplishthis result is the lever for lit'ting the awl, and the support for thesole positioning device may be so designed that, during the latterportion of the movement ot this lever, it is engaged thereby and thedevice Withdrawn from the insole by movement about the pivot of thepresser foot lifting lever as a center. The withdrawal of thev solepositioning device from engagement y,with the insole during the feedingof the sole is not essential, however, for it such device be constructedso as to have an anti-friction bearing on the insole, for instance, ifitbe made in the form of a roll having its curved surface contactingwith the insole, the obstruction oifered thereby to the passage of thesole during the feeding movement is negligible and can be disregarded.Neither is it essential that the sole positioning device be so mountedthat its removal from Working position is under control of the presserfoot lifting lever, as obviously this result may be attained byproviding other actuating means for this particular purpose.

To the accomplishment of these objects and such others as mayhereinafter appear, as will be readily understood by those skilled inthe art, the invention comprises the teatures and combinations of partshereinafter described and particularly pointed out in the appendedclaims.

The preferred form of the invention is illustrated in theaccompanyingdrawing in Which- Figure l is a rear elevation of a Nationalsewing machine with the attachment of this invention applied thereto;Fig. 2 is a side elevation of the parts above the sole supporting tableshown in Fig. 1; Fig. 3 is an enlarged detail of the sole supportingtable and adjacent parts showing-an insole in position to be operatedupon; and Fig.. 4f is a section, in plan, on the line l-tof Fig. 3.

In the embodiment of the invention illustrated in the drawing the stitchformingl mechanism, comprising the needle 2, awl Li and looper G, andtheir actuating mechanisms, the presser foot 8 and theraetuatingmechanism, and the sole feeding 4 mechanism operating through theneed/legare all the same as the corresponding parts'V in the priorpatents to E. E. and F. lBean, No. 137,528 of April 8, 1873 and/ETE.Bean No. 159L1eellot' January 26, 1875i Also, asin said prior patents,power for operating these mechanisms is obtained from a belt passing`overa pulley l0 on a driving shaft 1Q.

'As is usual, the presser foot is held in its depressed position by astrong leatl spring 1st mounted onthe frame and bearing on the upperside of a pin 16 project-ing from the rear of thepresser foot supportingbar. The machine is also. provided with the usual lever 18 for liftingthepresser foot tt the time theafsole is inserted in the machine. ThisleverI is tulcrumcd at 20 on the frame, has one end extended toaposition below the pin 16, andi/is operated through a treadle (notshownlconnected to the lever by a rod In the machine'of the :priorpatents renoeaava to have a slight play between the frame and.

pin. The purpose of mounting the presser foot lifting lever in thismanner will be presently explained.

-The sole supporting table 26 engages the sole at all times and issubstantially the same in the prior patents referred tio, with theexception that its upper surface at its outer." edge 1s slightly beveledso as to properly support the upturned flaps of the insole forengagement by the presser toot, as shown in Fig. 3. In order to hold theupturned flaps of the insole in stitch receiving position there isprovided a sole positioning device located at the front of and extendingabove the iap engaging surface of the solo support and arranged toengage the unchanneled faceof the insole opposite the flaps. ln theillustrated embodiment of the invention this device is shown as ananti-friction member, such as a roll 2S havingT its curved surfacebearing on the insole. The roll is freely rotatable on a support orhanger 30 mounted on any convenient part of. the machine. Its location,relative to the sole supporting table, is such that the upturned ilapsare properly maintained in working position, in the path of movement ofthe avvl and needle, during the operation of the machine.

As different insoles vary considerably in thickness the roll 28 shouldbe yieldingly mounted to prevent its bearing on t-he sole with so greata force as to interfere with a proper toed thereof. This may beconveniently provided for by mounting the roll support or hanger on theend of the lever 1S as in this way, owing to the location of the fulcrumof the lever, the spring Qd can be utilized to provide the desired yieldin the sole positioning device. It is for this purpose that the end ot'thc lever 1S is permitted a play beneath the pin 16, as hereinbetorcdescribed. mounting of the sole positioning device on the presser footlifting lever is also advantageous in that it provides tor removal theroll Q8 to a position of non-interference with the solo as it is beinginserted in the machine, ag shown in dotted lines in Fig. l. It will beobvious, however, to those skilled in the art, that other means may beprovided tor accomplishing vthis result. Still another advantage isobtained from a yielding mount ing of the sole position device. Insolesare not always of the same t iclnicss throughh out their length and ifthe device for bearing on the uncha/nneled face of the insole were" titinoemer/2 rigidly mounted it is possible that at times, as ,when inpassing the thicker portions, it would bind the sole so hard against theedge of the sole supporting table as to interfere with a proper feedthereof. The yielding mounting of the sole positioning device entirelyovercomes this difficulty as the device is permitted to give outwardlyas the thicker portions of the insole pass between it and -the solesupporting table.

It is sometimes found to be advantageous to provide means forintermittently withdrawing the sole positioning device from workingposition during the operation of the sole feeding means, thuseliminating all frictional contact between the device and insole at thistime. llhisn end may be accomplished by causing the sole positioningdevice, or its support, to be engaged periodically by one of the movingparts of the sewing mechanism and moved outwardly about the pivot of thelever 18 as a center. The forked lever 23 for operating the awl bar,designated by the same numeral in the patent to E. and F. Beanhereinafter referred to, is a convenient moving part, operating inproper time relation to the feeding means, for this purpose. In theillustrated embodiment of the invention the roll support 3f() is curvedat 3l to provide a clearance space `for the reciprocations of the leverQ3. This curve may be flattened to such an extent that during the latterportion of the upward stroke of the lever 23, and just before thecommencement of thev sole feeding movement, the support 3() will beengaged by the lever 23 see Fig. 2) and the sole positioning devicethereby lifted and-held away from the insole during the operation of thesole feeding means. The spring 2li will return the sole positioningdevice to operating position after the lever Q3 begins its downwardstroke.

The .stitching of the upturned flaps starts at one shank and the insoleis fed through the machine automatically, being guided by thus insuringcleanliness of the product and machine. Those skilled 1n the art willreadily recognize the advantage of the use of a positive fasteningdevice over cement, or

other adhesive material.

ll'hile the particulars of construction herein set forth are well suitedto one form of the invention, it is not to be understood that theseparticulars are essential, since they may be variously modified withinthe skill of the artisan without departing from the true scope of theactual invention as defined by the following claims.

What is claimed as new, is

1. A machine for securing together the two contiguous upturned flaps ofa channeled insole, having, in combination, sole feeding means, a solesupport continuously in engagement with one of the iaps and acting tosupport the insole during the feed, provision for lapplying to the flapsa series of fastening devices to secure them together and form a singlelip, and a device at the front of and extending above the flap engagingsurface of the sole support constructed and arranged to bear on theunchanneled face of the insole opposite the flaps and hold the flaps infastener receiving position on the sole support, substantiallydescribed.

Q. A machine for securing together the two contiguous upturned flaps ona channeled insole, having, in combination, sole feeding means, a solesupport continuously in engagement with one of the Haps and actingA tosupport the insole during the feed, provision for applying to the flapsa series of fastening devices to secure them together and form a singlelip, a sole positioning device at the front of and extending above theflap engaging surface of the sole support for engaging the unchanneledface of the insole opposite said flaps, and provision for retractingsaid device from working position to permit insertion and removal. ofthe sole, substantially as described.

3. A machine for securing together the two` contiguous upturned flaps ofa channeled insole, having, in combination, sole feeding means, a solesupport continuously in` engagement with one of the fiaps and acting tosupport the insole during the feed, provision for applying to the fiapsa series of fastening devices to secure them together and form a singlelip, and a yieldingly mounted device in front of and extending above theflap engaging surface of the sole support constructed and arranged to engage the unchanneled face of the insole bpposite said flaps and maintainthe flaps in fastener receiving position on the sole support,substantially as described.

L'l-. it machine for securing together the two contiguous upturned flapsof a channeled insole, having, in combination. sole feeding means, asupport for the flaps, provision for sccuring said flaps together by aline of stitches to form a. single, compound lip, and an anti-frictionbearing roll at the front of and extending above the flap engagingsurface of the sole support for engaging the unchanneled face of theinsole, opposite said flaps, with its curved surface to hold the flapsin stitch receiving position on the sole support, substantially asdescribed.

5. sewing machine for securingtogether l Rll the two contiguous upturnedflaps of a channeled insole, having, in combination, sole feeding means,a sole support engaging one flap and acting to support the insole duringthe feed, a presser foot to engage the other flap, and a device at thefront of and extending above the flap engaging surface of the solesupport constructed and arranged to bear on the unchanneled face of theinsole opposite the iiaps and hold it with its upturned flaps betweenthel 'sole support and `presser foot in position gto receive thestitches, 'substantially as described.

6. A sewing machine for securing together the two contiguous npturnedliaps ofY a channeled insole, having, in combination, sole feedingmeans, stitch forming mechanism including -a needle, a sole support anda. presser foot engaging the flaps said sole support s cting to supportthe insole during the feed, and a yieldingly mounted roll at the frontbfandeitenifing above the flap engaging surface of the sole supportconstructed and Yarranged lto bear on the un.- channeled face of theinsole opposite the flaps and hold the flapsin position for the needleto pass therethrough, substantially as described. y v

LA machine for securing'together the twocontiguous upturned flaps of aninsole, having, in combination, a sole support engaging one flap, apresser foot for engaging the other ap, means for inserting a suitablefastening device insaid iaps to secure them together, means forwithdrawing the presser foot from working position to permit insertionand removal of the sole, a sole positioning device 'at the front of andextending abcve the sole support constructed and arranged to bear on theunchanneled face of the insole opposite said flaps, and

suitable connections between the presser Adevice in said iiaps topermanently 'secure them together, a sole positioning device at thefront of and extending above the sole support constructed and arrangedto bear on the unchanneled face of the insole epposite the iaps, meansfor feeding the sole, and provision for withdrawing both the presserfoot and sole positioning device from working position during theoperation of the sole feedingmeans, substantially as described.

In testimony whereof I aflix my signature, in presence of two witnesses.

' ALBERT E.Y JOHNSON.

Witnesses:

Tetonas A. W HIDDEN, i/"ARREN G. Genen.

